Garmin GPS 695 Installation Manual

The Garmin GPS 695 is a high-performance aviation GPS navigator featuring a sunlight-readable display, integrated terrain and obstacle databases, Jeppesen ChartView, XM weather and audio capabilities, and advanced navigation functions. This manual provides essential information for the safe and proper installation, configuration, and initial operation of the unit in your aircraft. Below are key sections covering safety, pre-installation, mounting, wiring, configuration, and post-installation checks.

Features at a Glance

Key components: GPS 695 Main Unit, Mounting Tray, Remote Antenna, Power/Data Cable, Audio Panel Interface Cable, Documentation Kit.

Pre-Installation Planning

Review aircraft documentation and ensure compatibility. Select an appropriate mounting location.

1. Location Selection: Choose a location within clear view and reach of the pilot. Ensure it does not obstruct flight controls or other critical instruments.
2. Clearance: Verify adequate clearance behind the panel for the mounting tray and cable connectors (minimum 3 inches recommended).
3. Antenna Placement: Plan antenna location for optimal sky view, typically on top of the glare shield or fuselage. Ensure it is away from other antennas per spacing requirements.
4. Power Source: Identify a switched 10-32 VDC aircraft power bus capable of supplying 3A continuous. Plan for circuit protection.
5. Data Connections: Identify which avionics (autopilot, audio panel, etc.) will be interfaced and note their required data formats (NMEA 0183, ARINC, etc.).

WARNING! Installation must be performed by a qualified avionics technician in accordance with applicable regulations. Ensure aircraft power is OFF during all installation steps.

Mounting the Unit

Securely install the mounting tray, then slide the GPS 695 unit into place.

1. Prepare the Mounting Location: Mark and drill necessary holes for the mounting tray brackets per the template provided.
2. Install the Tray: Secure the mounting tray to the aircraft structure using appropriate hardware (nuts, bolts, washers). Ensure it is rigid and vibration-resistant.
3. Route Cables: Before final tray tightening, route the power/data cable and antenna cable from the rear of the tray to their respective destinations.
4. Install the Unit: Align the GPS 695 with the tray guides and firmly slide it in until it clicks and locks into place.
5. Secure with Screws: Install the two front-panel retention screws to prevent accidental ejection.

CAUTION! Do not overtighten mounting hardware. Avoid pinching or damaging cables during routing.

Electrical Connections

Connect the main power/data cable to aircraft power and ground.

1. Disconnect Aircraft Power: Ensure the aircraft master battery switch is OFF.
2. Identify Wires: Refer to the cable pin-out diagram. Key wires: Red (Power +), Black (Ground/Power -), Shield (Drain). Others are for serial data.
3. Connect Power: Connect the Red wire to a switched 10-32 VDC source via an appropriate fuse or circuit breaker (3A recommended). Connect the Black wire to a clean aircraft ground point.
4. Connect Drain Wire: Connect the cable shield/drain wire to the aircraft ground at the same point as the Black wire.
5. Secure and Protect: Secure all connections with appropriate terminals. Use cable ties and chafe protection for wire runs.

Tip: Use a voltmeter to confirm correct voltage and polarity at the connector before plugging it into the unit.

Antenna Installation

• Antenna Type: Active, remote-mount GPS antenna with integrated pre-amplifier.
• Optimal Location: On top of the glare shield or fuselage with a clear, unobstructed view of the sky. Avoid placement near other transmitting antennas.
• Mounting: Use the provided template. Drill holes for mounting screws and the antenna cable pass-through. Seal any external penetrations per aircraft standards.
• Connection: Route the antenna cable to the rear of the GPS 695 mounting tray and connect to the designated ANTENNA port. Avoid sharp bends.
• Grounding: The antenna base must be bonded to the aircraft skin for proper ground plane and lightning protection.

Configuration & Initial Setup

Power on the unit and configure system settings.

First Power-Up: Turn on aircraft master and the switched power to the GPS 695. The unit will perform a self-test and begin acquiring satellites.

System Setup Menu: Access via the 'Setup' key > 'System'.

1. Aviation Settings: Set aircraft type, altitude units (feet), distance (nm/km), fuel units, etc.
2. Sensor Configuration: If interfaced, configure external fuel flow, OAT, or EMS inputs.
3. Display & Audio: Adjust screen brightness, color mode, and alert volumes.
4. Navigation Settings: Configure desired CDI sensitivity, auto-zoom, and approach modes.
5. Database Activation: Enter subscription keys for Jeppesen ChartView and XM services (if applicable).
6. User Waypoints & Routes: Load any planned flight routes or custom waypoints.

Interface with Avionics

Connect serial data ports to autopilots, audio panels, or other devices.

1. Identify Ports: The main cable provides multiple configurable RS-232 serial ports (Port 1, Port 2, etc.).
2. Configure Ports: In 'Setup' > 'Interface', set each port's function (e.g., 'Aviation In/NMEA & Aviation Out', 'Audio Panel', 'Traffic In').
3. Wiring: Connect the TX (transmit) wire from a GPS port to the RX (receive) wire of the target device, and vice-versa for bidirectional communication. Connect signal grounds.
4. Common Interfaces:
   • Autopilot: Typically outputs NMEA 0183 or ARINC 429 data for navigation steering.
   • Audio Panel: Uses dedicated audio interface cable for audio alerts and XM audio control.
   • Traffic/Weather: Can input data from compatible TAS or SiriusXM receivers.

Tip: Refer to the Garmin GNS 400W/500W Series Installation Manual for detailed interface schematics and protocols.

Post-Installation Testing

Perform comprehensive ground and operational tests.

1. Power & Self-Test: Verify unit powers on and completes self-test without errors.
2. GPS Acquisition: Move aircraft to an open area. Verify the unit acquires 3D GPS position and WAAS integrity within several minutes.
3. Display & Controls: Test all buttons, knobs, and touchscreen functions. Verify display readability.
4. Audio Alerts: Trigger various alerts (terrain, airspace) and verify they are heard through the audio panel.
5. Avionics Interface: Verify data is being sent/received from connected devices (e.g., autopilot receives course data).
6. XM Services (if equipped): Activate and verify reception of weather data and/or audio channels.
7. Operational Flight Test: Conduct a short flight to verify full functionality under actual flight conditions, including navigation guidance.

WARNING! Do not rely on the unit for primary navigation until full functionality is verified. Always have backup navigation means available.

Regulatory Information

FAA Compliance: This unit is approved for installation as a supplemental navigation device under TSO-C146a (WAAS GPS Sensor) and TSO-C63c (Display). Installation must be documented in the aircraft logbook and may require a Form 337. Copyright & Trademarks: © Garmin Ltd. or its subsidiaries. Garmin, GPS 695, and ChartView are trademarks of Garmin Ltd. Jeppesen is a trademark of Jeppesen Sanderson, Inc. XM is a trademark of Sirius XM Radio Inc. Support: For technical support, visit www.garmin.com or contact Garmin Aviation Support.

Troubleshooting

Factory Reset: If necessary, a master reset can be performed via the System Setup page (note: this erases all user settings and data).

Service: Contact Garmin Aviation Product Support or a Garmin-authorized dealer for issues not resolved by troubleshooting.